ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

DEENFRIT
Product
  • Pricing
  • Directory
  • Industries
  • Trust Score
Company
  • About
  • Partner program
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryCrafts & TradesGoldsmithLa Chaux-De-FondsSerti Diam's SA
Serti Diam's SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Serti Diam's SA is a gem-setting workshop serving the high-end watchmaking and jewellery sectors. Its services include technical development, 3D design, CNC machining, and hand and mechanical setting using a range of techniques.

AI-generated
Presence

Service area

Offering

Products & services

Industry:GoldsmithCNC machining
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
4.0/5

Serti Diam's SA

✓ Offered4
Gem setting
Traditional and mechanical gem setting for high horology and luxury jewellery, using hand, machine, baguette, bezel, prong, snow and invisible-setting techniques.
Technical office and development
Research and development in the engineering office, programming up to 5 axes and technical development, from 3D design to final manufacturing.
5-axis CNC machining
Up to 5-axis CNC machining in the mechanical workshop, including set-ups, rough blanks and components machined in-house for project execution.
Diamond and gem-setting inspection
Inspection of diamonds and checking of gem setting to verify the elements related to manufacturing and the quality of the finished pieces.
Trust & reputation

ranQ Trust Score of Serti Diam's SA: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of November 2026

Serti Diam's SA scores 56.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.73.124%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.35.310%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
Serti Diam's SA scores 85.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Serti Diam's SA scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).86.722%
Serti Diam's SA scores 14.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.14.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Serti Diam's SA reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

No knowledge articles yet

Once Serti Diam's SA has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Serti Diam's SA in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Serti Diam's SA by reviews, experience and specialisations.

Is this your company?

Claim the company profile of Serti Diam's SA to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Rue Jardinière 123
2300 La Chaux-De-Fonds
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-112.738.395
Founded
2006 · 20 years
Last commercial register change
March 20, 2017
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • NELa Chaux-de-Fonds
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

    Similar companies

    GS
    Gil Sertissage SA
    La Chaux-De-Fonds
    BL
    Blu Larimar Sàrl
    La Chaux-De-Fonds
    CB
    Cybèle Bijoux Sàrl
    La Chaux-De-Fonds
    A&
    Ariane & Léone Bijoutières Créatrices SNC
    La Chaux-De-Fonds
    JM
    Jean-Bernard Michel SA
    La Chaux-De-Fonds
    AQ
    Atelier Quadroni SA
    Le Locle
    AA
    Atelier Aeris - Maëlle Bertarionne
    Brot-Plamboz
    MS
    Mediam Suisse Sàrl
    Neuchâtel